Tank-hose coupling



` l, 41, Sept. 6, 1927'.A L. H. GAIN ET AL 6 839 TANK HOSE coUPLINGFiled Oct. 8, 1925 Patented sein. 6, 1927."

UNITED STATES PATENT OFFICE.

LOYD H. GAIN, JOHN HUNTER BROGAN, .AND CHARLES J'. BROGN, 0F TYLER,TEXAS.

TANK-HOSE coUPLING.

Application led October 8,- 1925. Serial No. 61,275.

This invention relates to couplings for the feed pipesof locomotives andthe tank hose of tenders, and has vfor one. of its objects to :improveand simplify the general construction of devices of this character andto provide one which shall embody members or sections of suchconstruction that a liquid-tight connection may be established betweenthem without the use of gaskets.

A further object of the invention is t-he provision of a coupling of thecharacter. stated wherein the members of sections thereof Shall beadapted to be connected without the aid of bolts and nuts.

A further object of the invention is the provision of a coupling of thecharacter stated wherein the member or section con' necting means shallcolnprise draw pins carried by one member or section and draw keyscontacting with the other member or section and passing through the drawpins.

A still further object of the invention is the provision of a couplingof the character stated wherein the members or sections thereof shall beadapted to be separated by the draw keys after their removal fromengagement with the draw pins.

The foregoing and other objects are attained by the construction,combination and arrangement of parts hereinafter fully describedandclaimed, and illustrated in the accompanying drawing, wherein:

Figure 1 is a view in side elevation of the coupling Figure 2 is a viewin end elevation of the coupling;

Figure 3 is a sectlonal view taken on the plane indicated bythe line 3 3of Flgure 2 and i Figure 4 is a detail sectional view taken on the planeindicated by the line of Figure 1.

Corresponding and like parts are referred I to in the followingdescription and designated in the several views of the drawing bysimilar reference characters.

The coupling comprises a member 1 adapted to be connected to the feedpipe of a locomotive and a member 2 adapted to be connected to the tankhose on the tender of the locomotive. The member 1 is provided with anipple 3 to permit it to be connected to the feed pipe and the .member 2with a circumferentially ribbed nipple 4 to permit it to be connected tothe tank hose. The member 2 is provided with a conical socket 5 for thereception of a conical end 6 of the member 1, said end being adapted tohave such a snug fit in said socket as to establish a liquidtightconnection between the parts without the aid of gaskets. Radial ears 7are carried by the member 1 and similar ears 8 by the member 2 for thereception of headed draw pins 9 which are provided with slots 10 for thereception of wedges or draw keys 11.

The pins 9 and keys 11 constltute the means by which-the couplingmembers 1 and 2 are connected or secured together. The heads of the pins9 contact with the outer sides of the ears 8 and the keys` l1 contactwith the outer sides of the ears 7. This means permits the members 1 and2 to be drawn into and held in firm Contact with each other. To preventtheir loss the pins 9 are retained within the ears 8 by pins 12, and thekeys 11 are connected by chains 13 to the pins 12 in order to preventtheir loss.

In practice the member 1 is secured to the feed pipe of a locomotive andthe member 2 to the tank hose on the tender of the locomotive. Themembers 1 and 2 are then brought together to position the conical end 6of the member 1 in the conical socket 5 of the member 2 and-to positionthe pins 9 through the ears 7. The keys 11 are then supplied: Due to thefact that they pass thlough the pins 9 and contact with the ears 7, thekeys 11 are adapted to be employed `to draw the members 1 and 2 into andhold so. u

them insuch firm contact as to prevent their accidental separation andestablish a 1iquidtight connection between the same. The keys 11 may,after they have been withdrawn from the pins' 9, be used for the purposeof separating the members 1 and 2, and when so used they are insertedbetween the ears 7 and 8 in grooves 14. The grooves 14 are formed in theinner faces of the ears 7 and 8 inwardly beyond the pins 9 and arearranged at an angle to the pins. Whenl the members 1 and 2 arev in fullengagement los y merely illustrative, and that such chan es may be madewhen desired as are within t e scope of the invention as claimed.

What is claimed is:

1. A coupling of the character set forth, comprising inter-engagingmembers havin ears provided in their inner sides wit grooves, headed inspassing through the ears, and Wedge eys passing through the pins andcontacting with certain of the ears to draw the members together, saidwedge keys being adapted to be used for separating the members, the earsof one member being spaced from those of the other for a distancegreater than the width of the smaller ends of the Wedge keys to permitthe insertion of the wedge keys in the grooves preparatory to separatingthe members.

2. A coupling of the character set forth, comprising a member having aconical end and provided with ears, a member having a conical socket forthe reception of said end and provided with ears, pinssecured to theears of one of the members and passing freely through the ears of theother member, the ears being provided in their inner sides and inwardlybeyond the pins with grooves and wedge keys paing through the pins andcontacting with the outer sides ofthe ears of said other member to drawthe mem- Abers together, said wedge keys being adapt ed to be used forse arating the members, the ears of one mem r being spaced from those ofthe other for a distance ter than the width of the smaller ends o thewedge keys to permit the insertion of the wedge keys inthe groovespreparatory to separating the membersl In testimony whereof we aix oursign tures.

LoYD H. cam. JOHN HUNTER BRoGAN. CHARLES J. BROGAH.

